Bump org.mariadb.jdbc:mariadb-java-client from 2.7.9 to 2.7.12 (#12359)

Bumps [org.mariadb.jdbc:mariadb-java-client](https://github.com/mariadb-corporation/mariadb-connector-j) from 2.7.9 to 2.7.12.
- [Release notes](https://github.com/mariadb-corporation/mariadb-connector-j/releases)
- [Changelog](https://github.com/mariadb-corporation/mariadb-connector-j/blob/2.7.12/CHANGELOG.md)
- [Commits](mariadb-corporation/mariadb-connector-j@2.7.9...2.7.12)

---
updated-dependencies:
- dependency-name: org.mariadb.jdbc:mariadb-java-client
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

build.gradle

@@ -211,7 +211,7 @@ dependencies {
 
     implementation 'com.fasterxml:aalto-xml:1.3.3'
 
-    implementation group: 'org.mariadb.jdbc', name: 'mariadb-java-client', version: '2.7.9'
+    implementation group: 'org.mariadb.jdbc', name: 'mariadb-java-client', version: '2.7.12'
 
     implementation 'org.postgresql:postgresql:42.7.4'